diff --git a/inject.js b/inject.js
index 89f2eff..63fb31c 100644
--- a/inject.js
+++ b/inject.js
@@ -3,6 +3,9 @@ function make_v(envs, keys){
     envs = _envs[0]
     eles = _envs[1]
     var configs = {
+        EventTarget: {
+            addEventListener: { ban: true },
+        },
         Document: {
             createElement: {
                 value: 'return _createElement(arguments[0])'
@@ -655,7 +658,15 @@ function v_init_document(){
   Document.prototype.getElementsByTagNameNS = v_saf(function getElementsByTagNameNS(name){ var r = v_geteles(name, 'getElementsByTagNameNS'); v_console_log('  [*] Document -> getElementsByTagNameNS', name, r); return r })
   Document.prototype.querySelectorAll = v_saf(function querySelectorAll(name){ var r = v_geteles(name, 'querySelectorAll'); v_console_log('  [*] Document -> querySelectorAll', name, r); return r })
 }
-
+function v_init_canvas(){
+  HTMLCanvasElement.prototype.getContext = function(){if (arguments[0]=='2d'){var r = v_new(CanvasRenderingContext2D); return r}; if (arguments[0]=='webgl' || arguments[0]=='experimental-webgl'){var r = v_new(WebGLRenderingContext); r._canvas = this; return r}; return null}
+  HTMLCanvasElement.prototype.toDataURL = function(){return "data:image/png;base64,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"}
+}
+function v_init_event_target(){
+  EventTarget.prototype.addEventListener = function(){v_console_log('  [*] EventTarget -> addEventListener[func]', this===window?'[Window]':this===document?'[Document]':this, [].slice.call(arguments)); return null}
+  EventTarget.prototype.dispatchEvent = function(){v_console_log('  [*] EventTarget -> dispatchEvent[func]', this===window?'[Window]':this===document?'[Document]':this, [].slice.call(arguments)); return null}
+  EventTarget.prototype.removeEventListener = function(){v_console_log('  [*] EventTarget -> removeEventListener[func]', this===window?'[Window]':this===document?'[Document]':this, [].slice.call(arguments)); return null}
+}
 function mk_atob_btoa(r){var a="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",t=new Array(-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63,52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,-1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1);return{atob:function(r){var a,e,o,h,c,i,n;for(i=r.length,c=0,n="";c<i;){do{a=t[255&r.charCodeAt(c++)]}while(c<i&&-1==a);if(-1==a)break;do{e=t[255&r.charCodeAt(c++)]}while(c<i&&-1==e);if(-1==e)break;n+=String.fromCharCode(a<<2|(48&e)>>4);do{if(61==(o=255&r.charCodeAt(c++)))return n;o=t[o]}while(c<i&&-1==o);if(-1==o)break;n+=String.fromCharCode((15&e)<<4|(60&o)>>2);do{if(61==(h=255&r.charCodeAt(c++)))return n;h=t[h]}while(c<i&&-1==h);if(-1==h)break;n+=String.fromCharCode((3&o)<<6|h)}return n},btoa:function(r){var t,e,o,h,c,i;for(o=r.length,e=0,t="";e<o;){if(h=255&r.charCodeAt(e++),e==o){t+=a.charAt(h>>2),t+=a.charAt((3&h)<<4),t+="==";break}if(c=r.charCodeAt(e++),e==o){t+=a.charAt(h>>2),t+=a.charAt((3&h)<<4|(240&c)>>4),t+=a.charAt((15&c)<<2),t+="=";break}i=r.charCodeAt(e++),t+=a.charAt(h>>2),t+=a.charAt((3&h)<<4|(240&c)>>4),t+=a.charAt((15&c)<<2|(192&i)>>6),t+=a.charAt(63&i)}return t}}}
 var atob_btoa = mk_atob_btoa()
 window.btoa = window.btoa || atob_btoa.btoa
@@ -666,6 +677,8 @@ window.atob = window.atob || atob_btoa.atob
 `v_hook_href(window.location, 'location', ${JSON.stringify(location.href)})`,
 `v_hook_storage()`,
 `v_init_document()`,
+`v_init_canvas()`,
+`v_init_event_target()`,
 ]
 
     var v_getele = eles.v_getele